In Python REST APIs, how do I stream data?

In Python REST APIs, streaming data can be effectively handled using Flask or FastAPI. Streaming allows you to send large amounts of data or keep a connection open for continuous data flow without needing to load everything in memory at once. Below is an example of how to implement data streaming in a REST API using Flask.

Keywords: Python, REST API, data streaming, Flask, FastAPI
Description: This example demonstrates how to create a streaming response in a Python Flask REST API to handle large datasets efficiently.
from flask import Flask, Response app = Flask(__name__) @app.route('/stream') def stream(): def generate_large_data(): for i in range(1000000): yield f"data: {i}\n\n" return Response(generate_large_data(), mimetype='text/event-stream') if __name__ == '__main__': app.run(debug=True)

Keywords: Python REST API data streaming Flask FastAPI

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